Fluid-sealed valve.



H. I. LEA. FLUID SEALED VALVE.

LPPLIOATION' FILED FEB. 14, 19 07.

Patented Sept.21,1909.

lNVE/VTOR.

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omen STATES HENRY I. LEA, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO THE WESTINGHOUSE FFICE.

MACHINE CUMPANY, A CORPORATION OF PENNSYLVANIA.

v FLUID-SEALED VALVE.

To all whom it may concern: Be it known that I, HENRY I. LEA, a citizen'of the United States, and a resident-of This invention relates to gas valves and has for an object the production of a valve of simple construction and which is durable and eflective in operation.

A further object is the production of a two-way valve in which means are utilized for closing and water sealing one of the outlet ports when the other is open.

A further object is the production of a water cooled valve in which the water utilized in cooling the valve is also utilized for water sealing the outlet ports.

These and other objects I attain in an apparatus embodying the features herein described and illustrated.

In the single sheet drawing accompanying this application, Figure l is a sectional elevation of a valve embodying my invention; and, Fig. 2 is an elevation of a detail of my invention.

The valve illustrated as embodying my invention is adapted to be operated in connection with gas producers, although I wish it to be understood that I do not limit its application to such a use, nor do I wish to limit myself to the specific construction nor to the arrangement of parts shown.

Referring to the drawings: A valve casing, which consists of a cylindrical portion 3 and head portions 4 and 5, secured thereto in any suitable manner, incloses a reciprocable valve 6. The cylindrical portion of the valve' casing is provided with a flanged inlet port 7 which communicates with a source of gas supply, and the head portions 4 and 5 are respectively provided with flanged. outlet ports 8 and 9, which are adapted tob'e connected to gas delivery passages.

The valve 6 is connected by a link 11 to an arm 12, which is provided with'a pin 13,

rotatably mounted in a portion 15 formed integrally with the flange 14 of the port-8. The arm 12 extends through a slot 16, formed in the portion 15, and is arranged to move the valve 6 to close either one or the other of the outlet ports. The arm is also provided Specification of Letters Patent.

water seal the port 9.

Patented Sept. 21, 1909.

Application filed February 14, 1907. Serial No. 357,242.

with a shiftable counterbalanci'ng weight 17, which may be moved longitudinally of the arm and locked in various positions along it. A downwardly projecting flange 18,

formed integrally with the head portion 4,

extends into the valve casing and, when the valve. 6 is'raised to close-the port 8, (as shown in Fig. 1) cooperates with a cup 19, formed on the valve'by a'nannular flange 20, and forms a water seal for the port 8. The cup 19 receives water from a water supply pipe 21, which extends through the casing and delivers water through the port 8. The

water overflowing from the cup 19 is received by a basin 22, which is relatively shallow and which'is formed between the flange 20 and a concentric flange '23, formed integrally with the valve. A number of notches 24 are provided in the flange 23 so that the overflow water from the basin 22 will be well distributed. over an annular flange 25, which is formed integrally with the valve 6 and which extends downward.

An annular flange 26 surrounds the portv 9 and extends upwardly into the valve cas-' .discharged from the notches 24 and when the valve 6 is moved to close the port 9, cooperates with the flange 25, of the valve, to

Overflow piping 30 extends through the cylindrical portion 3 near the bottom of the valve casing and connects with a seal pot 31, which is formed by a cylindrical wall 32 and head portions 33 and 34. The flange 26 is provided with a slot 35 which is adapted to deliver Water overflowing from the basin 27 into a conduit or passage 37, which also communicates through piping 38 with the seal pot 31. The pot 31 is provided wit-h a discharge pipe 36 which extends through the head 34 into the upper portion of the seal pot, and the piping of each of the overflow connections extends through the head 33 into the. lower portion of the pot. Vith suchan arrangement gas cannot be dis charged, under conditions met in practice, through the water overflows, as each is sealed by the water in the pot 31.

The two ,overflow connections are provided for the-basin 27 for the reason thatwhen the the otherside of the flange. therefore provided to carry oil. the over flow valve 6 is moved to close the port 9 the liquid. 7

on either side of the flange 25 will assume a level correspondingto the, relative res-' sure to which it'ls'expose'dj; for examp e, if

- the pressure within the valve casing is greater than the pressure within the passages which communicate with the ort9, the water will,

rise on the side of the ange 25 which is'adj acen't tov the port 9 and will be depressed on The slot 35 is water when sucha conditlone'xists and the slot is'so arranged that the'overflow will not pass through the port 9.

When the pressure within thevalvefcasing is less than the pressure in the passage communicating-with the .port 9;,thefwater will riseon' the side of'the flange 25adjacent to the cylindrical portion3jof tlielyalve and. the overflowpi-ping will be. effectivein discharging the overflow fro the basin 27.

,By this" arrangement a constant overflow of the surplus water from the. 'valve through pipe 32- of the seal pot 31 may be obtained,

"this overflow indicating that the water in chamber 19 and basin 27 is retained in sufficient quantity to insure immediate sealing. of the port 8 or 9,. as may be desired.

Radially extending wings 40 are formed on.-the fiange 18 and are adapted to guide the valve 6 by contacting with the inner surface of the flange 20 while the valve is being moved to' close the port 8. Radially extendingwings 4-1 are formed integrally with the flange-25 and are adapted to guide the valve by contacting with the outward peripheral face of the flange-26 while the valve is being moved to close the port 9.

Hand holes 42 extend through the cylindrical portion 3 of the casing and are so located that the interior portions of the valve,

whichare apt to collect recrement material, may be readily cleaned.

A- specific application of a valve ofthis type may be had in producer gas practice where it is advisable at times to cause the gas "leaving the producer to pass through a purge stack .into the atmosphere and at other times to pass directly from the producer to cleaning apparatus or pipe lines. In such application the gas'from the producer wil'l enter port 7. Port 8 will communicate with the purgestack and port 9 with the cleaning apparatus or pipe lines. This valve con struction renders possible the immediate and positive closing oif the outlet 9 with the im-. mediate and'posltivevopeningof outlet 8, or. vice versa, without the possibility of having weight of the valve 6 itself, insures both of ports 8 and 9 either opener closed at the same time.

In the operation of this valve it is essential that the jvalv'e 6 beeasily held at either end or its throw. For this purposeuarm 12' is so lnade'that with proper adjustment of weight 17, a mere shifting of' the arm 12 about its pivot will, by changing the effective lever arm of the weight 17 cause the I valve 6 to remain in its upper; position, while atthe other extreme of its throw the effective-lever arm is so diminished that the its remaining 1n ltslowerposltlon. I

ciple of operationrof my invention, together In accordance with the provisions or the. patent statutes, I have described the prinwith the apparatus which I 'now consider to j represent the best embodiment thereof; but

I desireto haveit understood. that the appa-' ratus showris only illustrative and that the invention can be carried'out by other. means; and I v What I claim isz it" v i 1. In ,combinatioma valve casing provided with an inlet and two outlet-ports, a valve located within said casing for closing either of said outlet ports, a liquid receptacle carried by said-valve and a cooperating flange mounted on said casing for-closing-one of said ports, depending flange carried by said valve and a cooperating receptacle pro vided' in said casing tor-closing the other outlet port and an overflowconnection communicating with of said flange the receptacle on each side 2. In comb nation, a valve casing provided with an inlet port and two outlet ports, a

valve locatedwithin said casing for closing one or the other of said outlet. ports, a liquid receptacle carried by said valve, a cotiperat ing flange mounted on said casing for clos ing one of said outlet ports5 aflange carried.

by the valve and a cooperating receptacle provided in said casing for closing the other "port, means for delivering sealing liquid to the receptacle of said valve, means whereby the liquid overflowing. from said valve receptaclesupplies the receptacle of said casing and-anoverflow-connection for the receptacle of said casing which communicates therewith on each sideof said flange.

' Intestimony whereof, I' have hereuntb" subscribed my name this 31st day of J an- 

